[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
42 -BODY > 42A-BODY > DOOR > SYMPTOM PROCEDURES<CENTRAL DOOR LOCKING SYSTEM><CENTRAL DOOR LOCKING SYSTEM> > IGNITION "OFF"POSITION-LINKED DOOR UNLOCKING FUNCTION DOES NOT OPERATE.
Inspection Procedure A-4: Ignition "LOCK" (OFF) position-linked door unlock function does not operate.
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
  • When the ETACS-ECU of vehicles without KOS is replaced, the encrypted code of the ignition key needs to be registered to the ETACS-ECU. (If the encrypted code is not registered, the engine cannot be started. Register the encrypted code as described in Immobilizer System - How to Register Key ID ).
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
If a door is not unlocked when the ignition switch is turned to the "LOCK" (OFF) position, a malfunction of the CAN bus line, ignition switch or ETACS-ECU is suspected. Also, the ignition "LOCK" (OFF) position-linked door unlock function may have been "Disabled" with the customisation function.
 
 
PROBABLE CAUSES
  • Malfunction of CAN bus line
  • Malfunction of ETACS-ECU
  • Malfunction of ignition switch
  • Damaged wiring harness and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. Checking central door unlocking operation
Check that the central door locking system works normally.
Is the check result normal?
Go to Step 2.
Refer to Central Door Locking System Symptom Chart .
 
STEP 2. Check the customisation function.
Check that "Always (IG lock position)" is set for "Auto door unlock" with the customisation function.
Is the check result normal?
Go to Step 3.
Set "Always (IG lock position)" for "Auto door unlock" with the customisation function (Refer to Customisation Function ).
 
STEP 3. M.U.T.-IIISE CAN bus diagnostics
Use M.U.T.-IIISE to diagnose the CAN bus lines.
Is the CAN bus normal?
Go to Step 4.
Repair the CAN bus line (Refer to GROUP 54C, Troubleshooting ).
 
STEP 4. Check the ignition switch.
Check that the ignition switch works normally.
Is the check result normal?
Go to Step 5.
Repair the ignition switch (Refer to GROUP 54A, Ignition Switch Continuity Check ).
 
STEP 5. Retest the system.
Check that turning the ignition switch to the "LOCK" (OFF) position unlocks tall doors.
Is the check result normal?
Intermittent malfunction (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the ETACS-ECU.